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Commit 1d2e995f authored by Evan Cheng's avatar Evan Cheng
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Lower BUILD_VECTOR to VECTOR_SHUFFLE if there are two distinct nodes (and if 

the target can handle it). Issue two SCALAR_TO_VECTOR ops followed by a
VECTOR_SHUFFLE to select from the two vectors.

llvm-svn: 27023
parent 97b0d996
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